[INFO] updating cached repository https://github.com/mratsim/bndump
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f097cbdfc6bccbbd7f758da953b5b6efa7ae8db9
[INFO] checking mratsim/bndump against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmratsim%2Fbndump" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mratsim/bndump on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mratsim/bndump
[INFO] finished tweaking git repo https://github.com/mratsim/bndump
[INFO] tweaked toml for git repo https://github.com/mratsim/bndump written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mratsim/bndump already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a8921b7a4e77aa8168cc8fba4168207a0aea5c16686079a894cb1e62d8498f11
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a8921b7a4e77aa8168cc8fba4168207a0aea5c16686079a894cb1e62d8498f11"`
[INFO] [stderr]     Checking bndump v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:123:22
[INFO] [stderr]     |
[INFO] [stderr] 123 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:151:22
[INFO] [stderr]     |
[INFO] [stderr] 151 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/main.rs:6:29
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rustc_serialize::{json, Encodable};
[INFO] [stderr]   |                             ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/main.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut buf = [0u8; (8 * 8)];
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut buf = [0u8; (8 * 8)];
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:111:13
[INFO] [stderr]     |
[INFO] [stderr] 111 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:123:22
[INFO] [stderr]     |
[INFO] [stderr] 123 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:139:13
[INFO] [stderr]     |
[INFO] [stderr] 139 |             try!(s.emit_u8(buf[i]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/arith.rs:151:22
[INFO] [stderr]     |
[INFO] [stderr] 151 |             buf[i] = try!(s.read_u8());
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Encodable`
[INFO] [stderr]  --> src/main.rs:6:29
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rustc_serialize::{json, Encodable};
[INFO] [stderr]   |                             ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `one`
[INFO] [stderr]    --> src/arith.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     pub fn one() -> U256 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_zero`
[INFO] [stderr]    --> src/arith.rs:202:5
[INFO] [stderr]     |
[INFO] [stderr] 202 |     pub fn is_zero(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/arith.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     pub fn add(&mut self, other: &U256, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub`
[INFO] [stderr]    --> src/arith.rs:249:5
[INFO] [stderr]     |
[INFO] [stderr] 249 |     pub fn sub(&mut self, other: &U256, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mul`
[INFO] [stderr]    --> src/arith.rs:259:5
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub fn mul(&mut self, other: &U256, modulo: &U256, inv: u64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `neg`
[INFO] [stderr]    --> src/arith.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     pub fn neg(&mut self, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_even`
[INFO] [stderr]    --> src/arith.rs:278:5
[INFO] [stderr]     |
[INFO] [stderr] 278 |     pub fn is_even(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `invert`
[INFO] [stderr]    --> src/arith.rs:283:5
[INFO] [stderr]     |
[INFO] [stderr] 283 |     pub fn invert(&mut self, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `bits`
[INFO] [stderr]    --> src/arith.rs:333:5
[INFO] [stderr]     |
[INFO] [stderr] 333 |     pub fn bits(&self) -> BitIterator {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `div2`
[INFO] [stderr]    --> src/arith.rs:363:1
[INFO] [stderr]     |
[INFO] [stderr] 363 | fn div2(a: &mut [u64; 4]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_nocarry`
[INFO] [stderr]    --> src/arith.rs:410:1
[INFO] [stderr]     |
[INFO] [stderr] 410 | fn add_nocarry(a: &mut [u64; 4], b: &[u64; 4]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mul_reduce`
[INFO] [stderr]    --> src/arith.rs:483:1
[INFO] [stderr]     |
[INFO] [stderr] 483 | / fn mul_reduce(
[INFO] [stderr] 484 | |     this: &mut [u64; 4],
[INFO] [stderr] 485 | |     by: &[u64; 4],
[INFO] [stderr] 486 | |     modulus: &[u64; 4],
[INFO] [stderr] ...   |
[INFO] [stderr] 504 | |     this.copy_from_slice(&res[4..]);
[INFO] [stderr] 505 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/main.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut buf = [0u8; (8 * 8)];
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut buf = [0u8; (8 * 8)];
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_zero`
[INFO] [stderr]    --> src/arith.rs:202:5
[INFO] [stderr]     |
[INFO] [stderr] 202 |     pub fn is_zero(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]    --> src/arith.rs:240:5
[INFO] [stderr]     |
[INFO] [stderr] 240 |     pub fn add(&mut self, other: &U256, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `sub`
[INFO] [stderr]    --> src/arith.rs:249:5
[INFO] [stderr]     |
[INFO] [stderr] 249 |     pub fn sub(&mut self, other: &U256, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `mul`
[INFO] [stderr]    --> src/arith.rs:259:5
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub fn mul(&mut self, other: &U256, modulo: &U256, inv: u64) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `neg`
[INFO] [stderr]    --> src/arith.rs:268:5
[INFO] [stderr]     |
[INFO] [stderr] 268 |     pub fn neg(&mut self, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_even`
[INFO] [stderr]    --> src/arith.rs:278:5
[INFO] [stderr]     |
[INFO] [stderr] 278 |     pub fn is_even(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `invert`
[INFO] [stderr]    --> src/arith.rs:283:5
[INFO] [stderr]     |
[INFO] [stderr] 283 |     pub fn invert(&mut self, modulo: &U256) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `div2`
[INFO] [stderr]    --> src/arith.rs:363:1
[INFO] [stderr]     |
[INFO] [stderr] 363 | fn div2(a: &mut [u64; 4]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_nocarry`
[INFO] [stderr]    --> src/arith.rs:410:1
[INFO] [stderr]     |
[INFO] [stderr] 410 | fn add_nocarry(a: &mut [u64; 4], b: &[u64; 4]) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mul_reduce`
[INFO] [stderr]    --> src/arith.rs:483:1
[INFO] [stderr]     |
[INFO] [stderr] 483 | / fn mul_reduce(
[INFO] [stderr] 484 | |     this: &mut [u64; 4],
[INFO] [stderr] 485 | |     by: &[u64; 4],
[INFO] [stderr] 486 | |     modulus: &[u64; 4],
[INFO] [stderr] ...   |
[INFO] [stderr] 504 | |     this.copy_from_slice(&res[4..]);
[INFO] [stderr] 505 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "a8921b7a4e77aa8168cc8fba4168207a0aea5c16686079a894cb1e62d8498f11"`
[INFO] running `"docker" "rm" "-f" "a8921b7a4e77aa8168cc8fba4168207a0aea5c16686079a894cb1e62d8498f11"`
[INFO] [stdout] a8921b7a4e77aa8168cc8fba4168207a0aea5c16686079a894cb1e62d8498f11